Rage and aggression

I have been with my fella almost a year now and we have gone through a lot in that year. I first started to notice a problem after about 2 months. Every time he had a drink, whether it were one or ten, he began to get aggressive, but only with me, I have not seen him act like it with anyone else. He has never hit me and I don't think he ever will but his rage has begun to take over our lives. And when he is drunk, he hallucinates, saying that I'm not who I say I am and other wierd things. Neither of us drink or ever go out now, both because of this and our incredibly intense relationship, it seems neither of us can bare to see the other go out. I know that this is not the way a relationship is meant to be, but we love each other so much we thought we could make it work.. I'm beggining to have second thoughts. I can't live in fear of Christmases, New Years, Birthdays, Funerals and every other opportunity to drink and kick off. One time when he drank heavily, he bottled himself, my flat was covered in blood aswell as everything in it, and after calling an ambulance I sat with him in hospital for 5 hours. I have managed to get him to the doctors, who have suggested anger management, and we are waiting to hear from them. I know he had quite a traumatic childhood, which I believe is at the base of this aggression, but I question whether it can ever be stopped. I have a lot of other stresses in my life at the moment and I don't think I could cope if it happened again. He smokes cannabis also and has bad mood swings sometimes. All this aside though, 95% of the time he is the best Boyfriend I could ask for. I would love some advice, especially if you have been or are going through the same thing. Thanks for listening.